What exactly do the ventilated seats do?
I'd been feeling for air flow under and around the seats, and could feel nothing, so I thought they might not be working. Then the other day, while sitting in the driveway, my wife noticed the sound of a fan coming from her seat. The sound changed with her seat settings, and stopped when turned off. I checked my seat, and heard the fan as well. So, apparently, the ventilated seat function is working.
I still don't know what part of the seat is ventilated ... and can it be felt with your hand? I have yet to feel any air flow coming from either front seat.
Last edited by StanNH; May 26, 2015 at 08:55 AM.
Mine feel noticeable, but subtle and diffuse. There's not a lot of difference between low and high. I had another car which directed the vented seat air it right at the back side, and it felt a bit too personal. MB did it right for the hot weather we have here.
I'd been feeling for air flow under and around the seats, and could feel nothing, so I thought they might not be working. Then the other day, while sitting in the driveway, my wife noticed the sound of a fan coming from her seat. The sound changed with her seat settings, and stopped when turned off. I checked my seat, and heard the fan as well. So, apparently, the ventilated seat function is working.
I still don't know what part of the seat is ventilated ... and can it be felt with your hand? I have yet to feel any air flow coming from either front seat.

It's a shame really, there are probably, at least, three days a year where we can switch off the heated seats (or so it seems) and would appreciate the coolers. Jags offer them, so too do most of the larger SUVs.
Oh well, bit like the 360 camera - another option I would have liked, but can't have.
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Last edited by floridadriver; May 26, 2015 at 03:03 PM.
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It is more noticeable if you activate it after being parked in the shade, rather than the seats being exposed to direct sunlight.
However it works ideally when the cabin temp is very cool... As the intake is behind the seats... It's too bad some AC can't be routed to the intakes
Someone said they bought those taxicab bead seat covers and it (lol!!) improved airflow to their swamp a$$ to make the vents more usable... True story
Something to consider
The fans do not blow through the holes in the seat but rather suck air through the holes in the seat and blow it out the back of the seat.
They are not cooled.
Some w211 guys have gone to bigger and more powerful computer fans to increase the feeling, but they are a bit noisy and require some cutting of the seat insides.









